A versatile bar clamp spreader from Grainger can clamp or spread from the front, the side and behind the rail. You can convert it with the simple turn of a knob. Most models feature removable and reversible pressure pads and single-handed pump action. Bar clamps and spreaders help clamp everything from small woodworking projects to big jobs that require as much as 300 lbs. of pressure. Choose the size and strength bar clamp spreader you need when you shop at Grainger!